This is a file my friend Stephanie Ross and I have used for a while. It has all the noun endings on the front and blanks on the back. She used to print and laminate it: now I just send it to Office Depot. 
 
Office Depot Directions: Legal, Standard Whites--24 lb., fit to paper, full color, double sided, landscaped, collated, lamination--5 ml., special instructions: flip on short edge. It costs $2.55 to print and laminate. It will last throughout your child's Latin career!
 
Your child can practice their noun declensions at any time! This has been such a help to my students.
 
NOTE:  This digital file is for the purchaser only. If you wish to make print-outs for your students (either at home or a co-op), you may do so. You are not allowed, though, to share the digital file. If you have any questions, you may email me: magistrasheppard@latinandclassics.com.
 
(Note--this has a front with all the endings and a back that is blank.)